ASN AS747 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS747?

AS747 is listed under U.S. Army Information Systems Command.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

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AS747 U.S. Army Information Systems Command

U.S. Army Information Systems Command army.mil

US 48 Routes

AS Data

AS747

AS747 – U.S. Army Information Systems Command

AS Number	747
AS Name	DNIC-AS-00747
Organization	U.S. Army Information Systems Command (headqu-3)
Country	US
Website	army.mil
Number of IPv4 Routes	47
Number of IPv6 Routes	1
ASN type	GOVERNMENT
Registry	ARIN
Date Allocated	1990-09-25

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Use ASN data for AS747 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
147.242.127.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
144.104.16.0/21	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	2048
143.68.96.0/21	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	2048
2608:c109:c0::/48	AS747	Headquarters, USAISC	United States Department of Defense	~1×10²⁴
147.242.0.0/16	AS749	United States Department of Defense DoD	U.S. Army Information Systems Command	65536
147.242.1.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
155.20.148.0/22	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	1024
143.74.251.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
215.1.96.0/20	AS747	Headquarters, USAISC	DoD Network Information Center	4096
215.1.62.0/24	AS747	Headquarters, USAISC	DoD Network Information Center	256
155.20.252.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
150.196.80.0/20	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	4096
143.68.64.0/19	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	8192
147.242.21.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
143.86.128.0/20	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	4096
155.26.64.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
147.242.200.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
147.242.245.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
147.242.250.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
147.242.50.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
147.242.5.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
215.1.63.0/24	AS747	Headquarters, USAISC	DoD Network Information Center	256
144.107.144.0/20	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	4096
147.242.3.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
147.242.8.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
147.242.52.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
144.107.128.0/21	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	2048
160.143.224.0/19	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	8192
143.73.173.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
147.242.236.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
147.242.249.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
6.148.81.0/24	AS5277	United States Department of Defense DoD	U.S. Army Information Systems Command	256
143.76.239.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
160.140.252.0/22	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	1024
144.107.136.0/21	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	2048
150.196.64.0/20	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	4096
144.107.224.0/20	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	4096
6.148.95.0/24	AS5277	United States Department of Defense DoD	U.S. Army Information Systems Command	256
147.242.128.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
143.76.112.0/20	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	4096
155.20.163.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
143.76.227.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
155.20.231.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
143.73.240.0/20	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	4096
150.196.48.0/20	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	4096
147.242.105.0/24	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	256
160.143.192.0/19	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	8192
144.104.248.0/21	AS747	Headquarters, USAISC	U.S. Army Information Systems Command	2048

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       747
ASName:         DNIC-AS-00747
ASHandle:       AS747
RegDate:        1990-09-25
Updated:        2011-08-02
Ref:            https://rdap.arin.net/registry/autnum/747


OrgName:        Headquarters, USAISC
OrgId:          HEADQU-3
Address:        NETC-ANC CONUS TNOSC
City:           Fort Huachuca
StateProv:      AZ
PostalCode:     85613
Country:        US
RegDate:        1990-03-26
Updated:        2026-08-12
Ref:            https://rdap.arin.net/registry/entity/HEADQU-3


OrgTechHandle: REGIS10-ARIN
OrgTechName:   Registration
OrgTechPhone:  +1-844-347-2457 
OrgTechEmail:  disa.columbus.ns.mbx.arin-registrations@mail.mil
OrgTechRef:    https://rdap.arin.net/registry/entity/REGIS10-ARIN

OrgAbuseHandle: REGIS10-ARIN
OrgAbuseName:   Registration
OrgAbusePhone:  +1-844-347-2457 
OrgAbuseEmail:  disa.columbus.ns.mbx.arin-registrations@mail.mil
OrgAbuseRef:    https://rdap.arin.net/registry/entity/REGIS10-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

{
  "status" : true,
  "whois_server" : "whois.arin.net",
  "aut_nums" : [ {
    "aut_num" : "747",
    "as_handle" : "AS747",
    "as_name" : "DNIC-AS-00747",
    "tech_contacts" : [ "REGIS10-ARIN" ],
    "abuse_contacts" : [ "REGIS10-ARIN" ],
    "date_created" : "1990-09-25",
    "date_updated" : "2011-08-02",
    "source" : "https://rdap.arin.net/registry/autnum/747"
  } ],
  "organization" : {
    "handle" : "HEADQU-3",
    "name" : "Headquarters, USAISC",
    "address" : [ "NETC-ANC CONUS TNOSC", "Fort Huachuca", "AZ", "85613", "US" ],
    "city" : "Fort Huachuca",
    "state" : "AZ",
    "zip_code" : "85613",
    "country" : [ "US" ],
    "date_created" : "1990-03-26",
    "date_updated" : "2026-08-12",
    "source" : "https://rdap.arin.net/registry/entity/HEADQU-3",
    "addressCountry" : "US"
  },
  "technical_contacts" : [ {
    "handle" : "REGIS10-ARIN",
    "name" : "Registration",
    "email" : [ "disa.columbus.ns.mbx.arin-registrations@mail.mil" ],
    "phone" : [ "+1-844-347-2457" ],
    "source" : "https://rdap.arin.net/registry/entity/REGIS10-ARIN"
  } ],
  "abuse_contacts" : [ {
    "handle" : "REGIS10-ARIN",
    "name" : "Registration",
    "email" : [ "disa.columbus.ns.mbx.arin-registrations@mail.mil" ],
    "phone" : [ "+1-844-347-2457" ],
    "source" : "https://rdap.arin.net/registry/entity/REGIS10-ARIN"
  } ]
}

Peers

AS Number	Description	Country
AS27066	United States Department of Defense DoD	US
AS5277	United States Department of Defense DoD	US

Upstreams

AS Number	Description	Country
AS27066	United States Department of Defense DoD	US

Downstreams

AS Number	Description	Country
AS5277	United States Department of Defense DoD	US

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